class DocElement;
class Paragraph;
class RasterBitmap;
class VectorGraphic;
class DocStatsInterface
{
public:
	virtual void Visit(Paragraph&) =0;
	virtual void Visit(RasterBitmap&) =0;
	virtual void Visit(DocElement&) =0;
	virtual void Visit(VectorGraphic&) =0;
	virtual void Display() =0;
	virtual ~DocStatsInterface(){};
};

